Bryan Lanza served as an adviser on Trump’s 2016 campaign—and more recently helped get U.S. sanctions on a Russian oligarch’s aluminum company lifted.

A senior US diplomat has testified that the Trump administration threatened to withhold military aid from Ukraine unless it agreed to investigate Mr Trump's leading US presidential rival

On Trump’s transactional approach to politics

State department aide makes revelation in testimony, while Russia envoy nominee John Sullivan grilled at confirmation hearing

A decorated Army officer says the U.S. president acted improperly in demanding politically motivated investigations

Robert Lighthizer, the White House trade representative, had held up the reinstatement of free-trade treatment on some Ukrainian goods

Running out of options, Donald Trump touted one of his newer talking points this morning, publishing a tweet that Ukraine didn’t know that the White House was withholding military aid

Multiple people associated with Trump, both inside and outside of his administration, were engaged in efforts to change leadership at Naftogaz, Ukraine's geopolitically important state-owned oil and gas company

In their effort to discredit President Donald Trump’s perceived enemies, close allies of the President have received key documents and information from a Ukrainian oligarch

President Donald Trump predicted Wednesday that his impeachment fight with House Democrats could end up at the Supreme Court. He also went after former Vice President Joe Biden after he declared for the first time that Trump must be impeached

News broke Monday morning that a group of businessmen touting close ties to President Trump and his personal lawyer

The latest whistleblower "has first-hand knowledge" of the events in question, the person’s attorney said.

When President Donald Trump asked his counterpart in Ukraine to help investigate Trump’s political opponents, the Ukrainian President and his team did not see the request as linked to the release of U.S. military aid

President Donald Trump asked his acting chief of staff Mick Mulvaney to put a hold on millions in military aid to Ukraine roughly one week before a call with Zelenskiy

Interactions under focus amid whistleblower complaint on U.S. president’s dealings with a world leader

President Donald Trump is heavily considering a plan to block $250 million in military assistance to Ukraine, a move that would further ingratiate him to Russian President Vladimir Putin

The organization offered Trump to see first-hand the consequences of the Russian actions by visiting Ukraine in the coming months

What happens when the face of a country’s anti-corruption movement suddenly is investigated for the sort of bribery he once condemned?

The president’s lawyer wants Ukrainian officials to investigate a call Joe Biden made about corruption

Rudolph W. Giuliani, President Trump’s personal lawyer, plans to travel to Kiev, the Ukrainian capital, in coming days

Ukraine's embassy wrote that a Democratic National Committee (DNC) insider reached out in 2016 seeking dirt on President Trump's campaign

U.S. President Donald Trump has signaled he is keen on pursuing allegations that Ukraine tried to hamper his presidential bid in 2016

News report on TV and online claimed Petro Poroshenko had bribed Donald Trump’s lawyer

Washington lobbyist W. Samuel Patten, who has been one of the most low-profile but potentially significant cooperators in the special counsel's office investigation, appears to still be involved with sensitive aspects of Robert Mueller and the Justice Department's work

What ails the European allies of Donald Trump

U.S. President says he is considering canceling his scheduled meeting with Russian President Vladimir Putin at the Group of 20 (G20) summit in Argentina this week over Russia's detention of Ukrainian sailors

Would NATO be better off without Turkey? Ankara is now having a furious row with America and its other military allies.

What will American President’s recent visits result in for global affairs?

How Europe is preparing for the possible presidency of Donald Trump